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13319971 = 718110513
BaseRepresentation
bin110010110011…
…111100100011
3221001201120021
4302303330203
511402214341
61153254311
7221134510
oct62637443
927051507
1013319971
117578545
124564397
1329b4a52
141aaa307
1512819d1
hexcb3f23

13319971 has 8 divisors (see below), whose sum is σ = 15308384. Its totient is φ = 11352960.

The previous prime is 13319951. The next prime is 13319989. The reversal of 13319971 is 17991331.

13319971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13319971 - 25 = 13319939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13319951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3990 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (1913548).

Almost surely, 213319971 is an apocalyptic number.

13319971 is a deficient number, since it is larger than the sum of its proper divisors (1988413).

13319971 is a wasteful number, since it uses less digits than its factorization.

13319971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10701.

The product of its digits is 5103, while the sum is 34.

The square root of 13319971 is about 3649.6535452012. The cubic root of 13319971 is about 237.0469798326.

The spelling of 13319971 in words is "thirteen million, three hundred nineteen thousand, nine hundred seventy-one".

Divisors: 1 7 181 1267 10513 73591 1902853 13319971